To resolve this issue
You can also try to copy paste this: outlook.exe /cleanreminders
Note: In some cases, you may need to type in the full path for the Outlook.exe file. Usually it is in the Program Files folder
Path to Outlook.exe file:
C:\Program Files\Microsoft Office\
OR
C:\Program Files (x86)\Microsoft Office\
There should be an OfficeXX (xx is a number indicating the version of Office - Office15 folder is for Office 2013, Office14 for Office 2010, and Office12 for Office 2007).
For example, if you have Office 2013 installed then your path should be something like this:
C:\Program Files\Microsoft Office\Office15\OUTLOOK.EXE
000387881

We use three kinds of cookies on our websites: required, functional, and advertising. You can choose whether functional and advertising cookies apply. Click on the different cookie categories to find out more about each category and to change the default settings.
Privacy Statement
Required cookies are necessary for basic website functionality. Some examples include: session cookies needed to transmit the website, authentication cookies, and security cookies.
Functional cookies enhance functions, performance, and services on the website. Some examples include: cookies used to analyze site traffic, cookies used for market research, and cookies used to display advertising that is not directed to a particular individual.
Advertising cookies track activity across websites in order to understand a viewer’s interests, and direct them specific marketing. Some examples include: cookies used for remarketing, or interest-based advertising.